摘要:
An exhaust gas purifying apparatus which can reduce or prevent the shifting of a honeycomb catalyst member relative to a cushion member, even if hard vibrations are applied to the exhaust gas purifying apparatus, for example, during operation of a vehicle. In some embodiments, there can be no increase of the radial pressure of the cushion member applied to the honeycomb catalyst member. In some embodiments, an exhaust gas purifying apparatus can comprise a honeycomb catalyst member carrying metallic catalyst, wherein the member can be contained in a cylindrical container via a cushion member. The catalyst structural member can be formed of a sheet-like catalyst structure and can be manufactured by a wet paper-making method. The structural member can be secured to the cushion member by press-fitting the structural member into the cushion member.
摘要:
An exhaust gas purifying apparatus which can reduce or prevent the shifting of a honeycomb catalyst member relative to a cushion member, even if hard vibrations are applied to the exhaust gas purifying apparatus, for example, during operation of a vehicle. In some embodiments, there can be no increase of the radial pressure of the cushion member applied to the honeycomb catalyst member. In some embodiments, an exhaust gas purifying apparatus can comprise a honeycomb catalyst member carrying metallic catalyst, wherein the member can be contained in a cylindrical container via a cushion member. The catalyst structural member can be formed of a sheet-like catalyst structure and can be manufactured by a wet paper-making method. The structural member can be secured to the cushion member by press-fitting the structural member into the cushion member.
摘要:
A ceramic honeycomb structure body (1) including a configuration in which a plurality of porous honeycomb segments (2) are bound one another with an adhesive layer (3) interposed between each two neighboring porous honeycomb segments (2), where a plurality of protrusion portions (4) fixed to one of the adhesion surfaces (2a, 2b) respectively of two honeycomb segments (2, 2) opposed to each other with the adhesive layer (3) interposed between the two honeycomb segments (2, 2) are embedded into the adhesive layer (3).
摘要:
A green uncured pre-form (10) for an exhaust aftertreatment filter includes first and second sheets (12 and 14) of regenerable filter material, the second sheet being pleated and forming with the first sheet a plurality of axially extending flow channels (32, 80, 81) having lateral cross-sectional shapes with two adjacent included angles (34 and 36, 56 and 58) each greater than 45° and less than 75° and having wall segments (18 and 20, 68 and 70) with a thickness less than 0.8 mm, a porosity greater than 80%, and an extension height (b) between pleat tips less than 10 mm. Forming apparatus (83, 84) and methods are provided.
摘要:
The present invention provides a silicon carbide-based, porous, lightweight, heat-resistant material which can retain the shape of a porous structural body formed of, for example, corrugated cardboard and provides a manufacturing method therefor. The silicon carbide-based, porous, lightweight material is produced by a process including the steps of infiltrating a slurry composed of a resin and powdered silicon into a porous structural body having a framework formed of paper such as corrugated cardboard, wood, a woven cloth, a non-woven cloth, a plastic, or the like; carbonizing the infiltrated porous structural body at 900 to 1,350null C. in an evacuated or an inert atmosphere; and performing reaction-bonding for the obtained structural body at 1,350null C. or more in an evacuated or an inert atmosphere. By the reaction-bonding, silicon carbide having superior molten silicon wettability and open pores caused by the reaction during which the reaction volume decreases are simultaneously formed. In addition, the porous structural body thus obtained is infiltrated with molten silicon at 1,300 to 1,800null C. in an evacuated or an inert atmosphere, whereby the silicon carbide-based, porous, lightweight, heat-resistant material is formed.
摘要:
An exhaust gas filter for diesel particulates, comprising a row of a plurality of channels of honeycomb structure of porous sintered ceramic fiber composite sheet, the ceramic fiber composite sheet being produced by a paper-forming method from a slurry of alumino-silicate fiber and fire clay. The honeycomb structure of the ceramic fiber composite sheet is formed by stacking plane sheets and corrugated sheets one atop the other. The filter exhibits low pressure drop yet highly efficient operation by having a bulk density of the ceramic fiber composite sheet in the range of 0.1 g/cm.sup.3 to 0.8 g/cm.sup.3.
摘要翻译:一种用于柴油颗粒的废气过滤器,包括一排多孔烧结陶瓷纤维复合片的蜂窝状结构的多个通道,该陶瓷纤维复合片由铝硅酸盐纤维和火焰浆料通过造纸法生产 粘土。 陶瓷纤维复合片的蜂窝结构体通过将平面片和波纹片层叠在一起而形成。 通过使陶瓷纤维复合片的体积密度在0.1g / cm 3至0.8g / cm 3的范围内,该过滤器表现出低压降且高效的操作。
摘要:
Sheet material is made from a sandwich of a dried matrix slurry covered on both sides with a layer of fibrous material. This sandwich material is formed into corrugations having flat ridges prior to drying and hardening. The corrugations may take a number of forms including undulating or serpentine forms providing corresponding undulating ridges and also straight ridges. The sandwich sheets can be formed in a mechanism comprising traveling chains carrying arms with bars which form the desired shaped ridges. A structure is made up by over-laying a plurality of such corrugated sheets. Adjacent corrugated sheets are adhered to each other at the flat ridges. Advantages of structures made from this material reside in strength, rigidity, heat and sound insulation.
摘要:
Capillary insulation for low temperature liquids in which a cellular structure defines a plurality of discrete cells enclosed by a capillary cover with capillary openings communicating with each cell. The cell walls and the cover are designed to minimize the effects of strains imposed thereon by providing an excess of material both in the walls and the cover thereby permitting them to deflect without adversely affecting operation of the insulation. The cell walls are formed in an S-shaped configuration and the cover is dimpled to provide the desired excess material. The capillary openings are reinforced by a toroidal rib extending around each opening.
摘要:
To provide a treatment device equipped with a catalyst-supporting honeycomb structure, the device being for use in, for example, an exhaust gas purification treatment, hydrogen production by ammonia decomposition or the like, and a method for producing the same. The catalyst-supporting honeycomb structure is produced by forming the inorganic binder-containing functional catalyst-supporting corrugated glass paper without removing an organic binder originally contained in the glass paper and by using the corrugated glass paper in combination with the inorganic binder-containing functional catalyst-supporting flat glass paper. In the treatment device equipped with a catalyst-supporting honeycomb structure, a corrugated glass paper having an inorganic binder-containing functional catalyst supported thereon and a flat glass paper having the same inorganic binder-containing functional catalyst supported thereon are alternately stacked to form the catalyst-supporting honeycomb structure, and this catalyst-supporting honeycomb structure is packed in a casing.
摘要:
A ceramic filter element of ceramic material has an exterior surface that is provided with structural elements. The structural elements are produced by a non-cutting method. The structural elements are molded in the ceramic material in the form of grids, periodic patterns, irregular patterns, lettering or labels.